Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Net cash provided by operating activities	$ 320	$ 133
Proceeds from the sale, maturity, disposal or redemption of:
Fixed maturities	903	1,446
Equity securities	0	0
Mortgage loans on real estate	167	145
Limited partnerships/corporations	11	22
Acquisition of:
Fixed maturities	(1,217)	(891)
Equity securities	0	(2)
Mortgage loans on real estate	(148)	(636)
Limited partnerships/corporations	(17)	(30)
Derivatives, net	(15)	168
Policy loans, net	2	5
Short-term investments, net	(50)	29
Short-term loan to affiliate, net	80	(100)
Collateral received (delivered), net	23	(152)
Other investments, net	(22)	0
Net cash (used) provided by in investing activities	(283)	4
Cash Flows from Financing Activities:
Deposits received for investment contracts	816	680
Maturities and withdrawals from investment contracts	(782)	(792)
Settlements on deposit contracts	(15)	(17)
Net cash provided by (used in) financing activities	19	(129)
Net increase in cash and cash equivalents	56	8
Cash and cash equivalents, beginning of period	288	561
Cash and cash equivalents, end of period	$ 344	$ 569